Will and Grace deal with parents' marriage in Season 10 clip

"Will & Grace" stars (L-R) Megan Mullally, Eric McCormack, Debra Messing and Sean Hayes. The group stars in a new clip from Season 10 of the comedy. Photo by Jim Ruymen/UPI | License Photo

Debra Messing (C) is joined by Eric McCormack (L) and Megan Mullally (R) during an unveiling ceremony honoring her with the 2,620th star on the Hollywood Walk of Fame on October 6. File Photo by Jim Ruymen/UPI | License Photo

Sept. 14 (UPI) -- Will (Eric McCormack) and Grace (Debra Messing) can't come to terms with their parents' wedding in a new clip from Season 10 of Will & Grace.

The teaser, released Friday on Twitter, features Will and Grace being made fun of by their friends Karen (Megan Mullally) and Jack (Sean Hayes) after witnessing Will's mother, Marilyn (Blythe Danner), tie the knot with Grace's father, Martin (Robert Klein).

"Who doesn't love a wedding," Jack says while laughing. "The look on Will and Grace's face when his mother and her father said 'I do' was priceless," added Karen before Will and Grace are seen staring blankly in shock.

The clip takes place following the Season 9 finale where Martin proposed to Marilyn.